Open AccessLow Temperature Decreases the Phylogenetic Diversity of Ammonia-Oxidizing Archaea and Bacteria in Aquarium Biofiltration Systems
Author(s) -
Hidetoshi Urakawa,
Yoshiyuki Tajima,
Yoshiyuki Numata,
Satoshi Tsuneda
Publication year - 2008
Publication title -
applied and environmental microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.552
H-Index - 324
eISSN - 1070-6291
pISSN - 0099-2240
DOI - 10.1128/aem.01529-07
Subject(s) - archaea , species richness , phylogenetic diversity , biofilter , biology , rarefaction (ecology) , ecology , phylogenetic tree , bacteria , species diversity , environmental science , environmental engineering , biochemistry , genetics , gene
The phylogenetic diversity and species richness of ammonia-oxidizing archaea (AOA) and bacteria (AOB) were examined with aquarium biofiltration systems. Species richness, deduced from rarefaction analysis, and diversity indices indicated that the phylogenetic diversity and species richness of AOA are greater than those of AOB; the diversity of AOA and of AOB is minimized in cold-water aquaria. This finding implies that temperature is a key factor influencing the population structure and diversity of AOA and AOB in aquarium biofiltration systems.